Home / 28,475.15-39,289.05-16,531.29

Finding the Fourth Proportional to 28,475.15, 39,289.05 and 16,531.29

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Solution

The fourth proportional to 28,475.15, 39,289.05 and 16,531.29 is: 22,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,475.15 : 39,289.05 = 16,531.29 : x
  2. Step 2: Convert to fraction form
    28,475.15/39,289.05 = 16,531.29/x
  3. Step 3: Cross multiply
    28,475.15x = 39,289.05 × 16,531.29
  4. Step 4: Simplify right side
    28,475.15x = 649,498,679.37
  5. Step 5: Solve for x
    x = 649,498,679.37/28,475.15
  6. Step 6: Final answer
    x = 22,809.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.